Simplify 2m - [n - (m - 2n)].

-3m - n
3m - n
-3m - 3n
3m - 3n

Answers

Answer 1

Answer: 2m - [n - (m - 2n)]

2m - n + (m - 2n)

2m - n + m - 2n

2m + m - n - 2n

3m - 3n

Answer is D.

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Nathan is trying out to be the kicker on his high school's football team. He notices that for every hour he practices he can kick the ball 2 yards further. On his first try he kicked the ball 42 feet, on the second try he kicked the ball 16 yards. What could be a possible distance for his third kick? A. 20 feet B. 60 feet C. 54 yards D. 24 yards

Answers

This is actually a very easy problem. The only hurdle we have here is the units that are used in this problem. We have to understand that each unit may mean the same length but the values are different. In this case, 1 yard is equal to 3 feet. Meaning 42 feet is equal to 16 yards. So that is 14, 16 and the answer is 18 yards. 18 yards is equal to 54 ft.

Which function is a quadratic function?A) p(x) = 2x (x^2 + 6) + 1
B) m(x) = -4 (x + 3) -2
C) t(x) = -8x^2 (x^2 - 6) + 1
D) h(x) = 3x (x - 2) - 4

Answers

Answer:

Step-by-step explanation:

3x (x-2) - 4

3x²-6x-4

I hope it's helpful

Which shows 54^2 − 46^2 being evaluated using the difference of squares method

Answers

We use the formula: a^2 - b^2 = (a - b )(a + b);
54^2 − 46^2 = (54 - 46)(54 + 46) = 8 x 100 = 800;

Let f(x) = -x + 5 and g(x)=3x+ 2. Find f(x) – g(x).

Answers

Answer: f(x) - g(x) = -4x+3

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Work Shown:

f(x) - g(x) = ( f(x) ) - ( g(x) )

f(x) - g(x) = ( -x+5 ) - ( 3x+2 )

f(x) - g(x) = -x+5 - 3x - 2

f(x) - g(x) = (-x-3x) + (5-2)

f(x) - g(x) = -4x+3

In step 3, make sure to distribute the negative to everything in the parenthesis for (3x+2)

Ratio equal to the ratio given 12:7

Answers

To find an equal ratio, just multiply both sides of the ratio by the same number.

12:7
12(2):7(2)
24:14

12:7 = 24:14

as 12:7 = 12/7
therefore to get equivalents of a fraction we multiply the nominator and the denominator with a same no
let us take 2
then, 12x2/7x2 =24/14
your ans is 24/14

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